package Mainclass;

class Circle{
	  void printArea(double r){
	     System.out.println(r * r * 3.1415926);
	  } 
}

class Rectangle{
	  void printArea(double a,double b){
	     System.out.println(a*b);
	  }
}
public class mainclass {
	public static void main(String arg[]){
	    Circle circle = new Circle();
	    circle.printArea(100);
	    Rectangle rect = new Rectangle();
	    rect.printArea(100,65);
	    }
}

